Structural shape turning machine



June 27, 1933. J. L. SKEEHAN STRUCTURAL SHAPE TURNING MACHINE Filed June9, 1932 2 Sheets-Sheet 1 lnvenior:

JOHN L. SKE H/WV, M M 7 5/5- fife/03y? June 27, 1933. .1. 1.. SKEEHANSTRUCTURAL SHAPE TURNING MACHINE Filed June 9, 1932 2 Sheets-Sheet 2IMGMOF: JoH/v Lv 5'KEEH4/V,

fi/ flforneys.

Patented June 27, 1933 UNITED STATES PATENT JOHN SKEEHAN, OI? BADEN,PENNSYLVANIA STRUCTURAL SHAPE TURNING- MACHINE Application filed J'une9, 1932. Serial No. 616,342.

This invention is a machine for turning heavy objects. It isparticularly adapted to turn work carried by a conveyer or table. Forinstance, a structural steel beam flange punch generally has a rollertable which carries the work through the punch in a horizontal flangeposition. After the top flange is punched the beam is rolled back,

turned so its other flange is uppermost and re-passed through the punch.This turning operation is generally done manually or by skillfulmanipulation of a crane.

A specific example of the invention used for the above purpose will nowbe disclosed.

laving reference to the accompanying drawings:

Figure l is a top plan of a beam punch and roller table to which theinvention is applied.

Figure 2 is a side elevation of Figure 1.

Figure 3 is an end elevation of the invention in various stages of itsoperat on, and

Figure 4 is cross-section from the line IV-IV in Figure 2.

The above show a beam punch 1 provided with a roller table divided intotwo sections, an ingoing section 2 and an outgoing section 2*.Horizontal arms?) are supported over and across the section 2 byvertical 0 masts 4 which slide in housings 5. The masts 4 extend belowthe floor level and there carry racks 6. Pinions 7 mounted on a commonshaft 8 engage the racks 6 of each of the masts 4. This shaft is drivenby a reversing motor 9 throughsuitable reduction gearing 10.

Carriages 11 run on the arms 3 and carry free running wheels 12.Depending endless chain loops 13 are carried by these wheels 12 whichare of suflicient overall diameter to give the vertical sections of theloops sulficient spread so they may encompass and receive a beam on thetable 2 Assuming that a beam has had one of its 45 flanges punched andis now ready to be run back to the table section 2 for turning. Op-

eration of the motor 9 lowers the masts a so that the chain loops 13 mayreceive the beam which is then rolled over the section 2 of the rollertable and through the two loops. The motor is now operated to lift themasts 56 at so that the beam is raised from the roller table. It is noweasy to roll the beam over so that its other flange will be uppermost.The motor then re-lowers the masts 4 so that the beam again rests on theroller table but 00 with-its unpunched flange uppermost. It may now berun through the punch so that its top flange can be punched and thenonto the outgoing section 2 of the roller table.

The .drawings show only two of the units just described as this issufficient to support mostbeamlengths at both ends. However, it ispossible to use more than these, having them all alined. They may bethen used together to handle longer beams or may function individuallyin pairs.

It might be mentioned that most of the operations here disclosed mightbe performed I manually. The wheels on the carriages 11 may be easilymade sufliciently free running to permit this. During the actual turningoperation the beam will be balanced and the only forces necessary toovercome will be its inertia and the turning friction of the wheels 12.

Although a specific form of this invention has been shown and describedin accordance withv the patent statutes, it is not intended to limit itsscope exactly thereto, except as defined by the following claim.

I claim:

A machine for turning heavy objects including a hoist having ahorizontal lifting arm, a carriage running on said arm, a wheel on saidcarriage and 2. depending endless loop of chain or cable arranged on andover said wheel. p

In testimony whereof, I have hereunto set my hand.

JOHN L. SKEEHAN.

